A Reassessment of the Conservation Status of Crayfishes of the United States and Canada after 10+ Years of Increased Awareness

  title={A Reassessment of the Conservation Status of Crayfishes of the United States and Canada after 10+ Years of Increased Awareness},
  author={Christopher A. Taylor and Guenter A. Schuster and John E. Cooper and Robert J. Distefano and Arnold G. Eversole and Přemek Hamr and H. H. Hobbs and Henry W. Robison and Christopher E. Skelton and Roger F Thoma},
Abstract The American Fisheries Society Endangered Species Committee herein provides a list of all crayfishes (families Astacidae and Cambaridae) in the United States and Canada that includes common names; state and provincial distributions; a comprehensive review of the conservation status of all taxa; and references on biology, conservation, and distribution. The list includes 363 native crayfishes, of which 2 (⟨ 1%) taxa are listed as Endangered, Possibly Extinct, 66 (18.2%) are Endangered… 
History, Status, and Conservation of Georgia Crayfishes
Of the 3 non-native species now present in Georgia, Orconectes (Buannulifictus) palmeri creolanus (Creole Painted Crayfish) appears to be expanding its range, while the status of Procambarus (Scapulicambarus) clarkii (Red Swamp Crawfish) remains poorly understood.
Conservation Status of Freshwater Gastropods of Canada and the United States
Comparison of modern to background extinction rates reveals that gastropods have the highest modern extinction rate yet observed, 9,539 times greater than background rates.
Conservation status of imperiled north American freshwater and diadromous fishes
This list includes 700 extant taxa representing 133 genera and 36 families, a 92% increase over the 364 listed in 1989, and reflects the addition of distinct populations, previously non-imperiled fishes, and recently described or discovered taxa.
Conservation and Management of Crayfishes: Lessons from Pennsylvania
The conservation status of several native crayfishes in Pennsylvania and nearby states was determined, and introduced congeners likely played a major role in population losses.
Global Diversity and Conservation of Freshwater Crayfish (Crustacea: Decapoda: Astacoidea)
The conservation status of 611 species of crayfish worldwide is discussed, based on global assessments from the IUCN (International Union for Conservation of Nature) Red List protocols as well as regional assessments on governmental endangered species lists.
Multiple drivers of decline in the global status of freshwater crayfish (Decapoda: Astacidea)
  • N. Richman, M. Böhm, B. Collen
  • Environmental Science
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2015
This study evaluated the extinction risk of the world's 590 freshwater crayfish species using the IUCN Categories and Criteria and found 32% of all species are threatened with extinction.
The State of Crayfish in the Pacific Northwest
The present distribution and ecology of native crayfishes in this region is found to be poorly known, inhibiting accurate conservation assessments and management.
Distribution, Status, and Life-History Observations of Crayfishes in Western North Carolina
Data collected during the NCWRC inventories, as well as data obtained from the North Carolina State Museum of Natural Sciences, North Carolina Division of Water Quality, Ohio State University, and other cooperators, were incorporated into a detailed GIS database and should provide a useful tool in monitoring the status of native crayfish populations and the spread of invasive species, and informing conservation and management decision making.
A review of the ever increasing threat to European crayfish from non-indigenous crayfish species
A conceptual model is presented as a possible way forward for protecting the future survival of ICS in Europe from habitat loss, deteriorating water quality, overfishing, climate change, and most importantly from NICS and crayfish plague.
Conservation Assessment and Habitat Notes for Three Rare Alabama Crayfishes: Cambarus cracens, Cambarus scotti, and Cambarus unestami
Fieldwork was conducted across northeastern Alabama and northwestern Georgia to review the occurrence, habitat, and in some cases, local population densities of three crayfish species to determine current distributions in relation to historical surveys, and indicated a need for conservation action.


Conservation Status of Crayfishes of the United States and Canada
It is estimated that almost 50% of crayfishes in United States and Canada are in need of conservation recognition, and it is hoped that this report spurs increased research efforts from aquatic ...
Conservation Status of Freshwater Mussels of the United States and Canada
The American Fisheries Society herein provides a list of all native freshwater mussels (families Margaritiferidae and Unionidae) in the United States and Canada and a comprehensive review of the conservation status of all taxa.
Status of Freshwater Fishes of the United States: Overview of an Imperiled Fauna
Abstract Conservation biologists have begun a concerted effort to educate the public, resource administrators, and politicians about the decline of temperate ecosystems, including their fishes. The
Nonindigenous Crayfishes Threaten North American Freshwater Biodiversity: Lessons from Europe
The threats posed by nonindigenous crayfishes to freshwater ecosystem function, fisheries, and the biodiversity of native crayFishes are highlighted; some lessons for North American freshwater conservation from the experience in Europe are drawn; and existing regulations that address the introduction of nonind indigenous craysfishes are reviewed.
A diagnosis of the current status of each of these species suggests the potential impact of anthropogenic perturbations, such as lake acidification and wetland destruction, for the future of these crayfishes in Ontario.
Fishes of North America Endangered, Threatened, or of Special Concern: 1989
Comparison of the 1979 and 1989 list of rare North American fishes indicates that recovery efforts have been locally effective for some species, but are cleverer than was earlier believed.
Diversity, distribution, and conservation status of the native freshwater fishes of the Southern United States
The Southeastern Fishes Council Technical Advisory Committee reviewed the diversity, distribution, and status of all native freshwater and diadromous fishes across 51 major drainage units of the southern United States to determine the status of extinct, endangered, threatened, or vulnerable fishes.
Survey of Wyoming crayfishes
—Collections of crayfish by Wyoming Game and Fish Department biologists and University ofWyoming staff in 1985-1987 included five species: Pacifastacus gamhelii, the only species found in the Snake
Inventory of the Decapod Crustaceans (Crayfishes and Shrimps) of Arkansas with a Discussion of Their Habitats
The freshwater decapod crustaceans of Arkansas presently consist of two species of shrimps and 51 taxa of crayfishes divided into 47 species and four subspecies, including the conservation of a single species, the troglobitic crayfish.
Implications of Hybridization between Introduced and Resident Orconectes Crayfishes
The results suggest that genetic mechanisms play a role in the extirpation of O. propinquus by O. rusticus and are consistent with observations of other researchers suggesting that hybridization with non‐native species is common among crayfishes at many other locations.